ATE50044T1 - PROCESS FOR SHEATHING STEEL OBJECTS WITH PLASTIC. - Google Patents

PROCESS FOR SHEATHING STEEL OBJECTS WITH PLASTIC.

Info

Publication number
ATE50044T1
ATE50044T1 AT87730122T AT87730122T ATE50044T1 AT E50044 T1 ATE50044 T1 AT E50044T1 AT 87730122 T AT87730122 T AT 87730122T AT 87730122 T AT87730122 T AT 87730122T AT E50044 T1 ATE50044 T1 AT E50044T1
Authority
AT
Austria
Prior art keywords
degrees
layer
temperature
chromatizing
sublayers
Prior art date
Application number
AT87730122T
Other languages
German (de)
Inventor
Walter Dr-Ing Meyer
Walter Ing Stucke
Original Assignee
Mannesmann Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6314220&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE50044(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann Ag filed Critical Mannesmann Ag
Application granted granted Critical
Publication of ATE50044T1 publication Critical patent/ATE50044T1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/82—After-treatment
    • C23C22/83—Chemical after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
    • B05D3/102—Pretreatment of metallic substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B05D7/148—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using epoxy-polyolefin systems in mono- or multilayers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
    • B29C63/06—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like around tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/48—Preparation of the surfaces
    • B29C63/481—Preparation of the surfaces mechanically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/48—Preparation of the surfaces
    • B29C63/486—Preparation of the surfaces of metal surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B29L2009/003—Layered products comprising a metal layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

In a method for continuously jacketing steel objects particularly tubing including the steps of cleaning the object by means of blasting its surface; chromatizing the cleaned surface by exposing the surface to a silicate containing watery solution of 3 and/or 6 valued chromium compound or compounds, drying the object at a temperature preferably between 105 degrees C. and 130 degrees C. which is well below the temperature necessary either for an application of a bonding and cover layer and/or for curing of the epoxy resin; a blend being applied prior to conversion of the chromatizing medium and any chromium iron compounds into a thermally stable intermediate layer including a chromium iron silicate oxide layer, the application of epoxy resin curing agent is carried out in two steps to obtain at least two sublayers, the first one of the layer being more reactive than the second one at temperature below 170 degrees C. and the two sublayers are cured together thereafter at a temperature between 170 to 240 degrees C., the first sublayer is applied in the liquidous state and the second layer is applied as a powder.
AT87730122T 1986-11-18 1987-10-08 PROCESS FOR SHEATHING STEEL OBJECTS WITH PLASTIC. ATE50044T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3639417A DE3639417C1 (en) 1986-11-18 1986-11-18 Process for encasing objects made of steel with plastic
EP87730122A EP0268547B2 (en) 1986-11-18 1987-10-08 Method for enveloping steel objects with plastics

Publications (1)

Publication Number Publication Date
ATE50044T1 true ATE50044T1 (en) 1990-02-15

Family

ID=6314220

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87730122T ATE50044T1 (en) 1986-11-18 1987-10-08 PROCESS FOR SHEATHING STEEL OBJECTS WITH PLASTIC.

Country Status (6)

Country Link
US (1) US4786339A (en)
EP (1) EP0268547B2 (en)
JP (1) JPS63137774A (en)
AT (1) ATE50044T1 (en)
CA (1) CA1284443C (en)
DE (1) DE3639417C1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990009542A1 (en) * 1989-02-09 1990-08-23 Tubemakers Of Australia Limited Method of corrosion protection at pipe junctions
CA2041877A1 (en) * 1990-05-07 1991-11-08 Samuel J. Thomas Pipe weld cover apparatus
FR2685352A1 (en) * 1991-12-24 1993-06-25 Pont A Mousson MULTILAYER COATING, WITH ITS OBTAINING METHOD AND APPLICATION
CA2125551A1 (en) * 1994-06-08 1995-12-09 Mark Gibson Pipe treatment process
FR2723006B1 (en) * 1994-07-28 1996-09-13 Gts Isopipe Sa PROCESS FOR PRODUCING A PROTECTIVE COATING ON A TUBE AND, PARTICULARLY, ON A PIPELINE TUBE DEVICE AND INSTALLATION FOR IMPLEMENTING SAME
US5972450A (en) * 1995-10-10 1999-10-26 Bundy Corporation Metal tubing coated with multiple layers of polymeric materials
DE19634222A1 (en) * 1996-08-24 1998-02-26 Basf Lacke & Farben Coated metal pipes, coated reinforcing steel or prestressing steel
US6149969A (en) * 1998-11-10 2000-11-21 Kemacoat International Inc On-site pipe coating process
CA2537348A1 (en) * 2006-02-22 2007-08-22 Shawcor Ltd. Coating method for pipe having weld bead
CN111823562A (en) * 2020-06-23 2020-10-27 戚睿妍 Anti-corrosion treatment process of iron-based material

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2255084C3 (en) * 1972-11-07 1980-07-24 Mannesmann Ag, 4000 Duesseldorf Composite pipe and process for its manufacture
DE2555017A1 (en) * 1975-12-06 1977-06-08 Kabel Metallwerke Ghh TUBE-SHAPED STRUCTURE FOR TRANSPORTING LIQUID OR GAS-SHAPED MEDIA, ESPECIALLY AT HIGH TEMPERATURES AND HIGH PRESSURE
JPS5377324A (en) * 1976-12-21 1978-07-08 Nippon Steel Corp Double coated steel pipe and manufacturing method for it
DE3101684A1 (en) * 1981-01-21 1982-08-26 Hoechst Ag, 6000 Frankfurt "METHOD FOR COATING METAL TUBES AND USE OF THE TUBES PRODUCED BY THIS METHOD"
JPS5829661A (en) * 1981-08-17 1983-02-21 住友金属工業株式会社 Metallic pipe coated with resin
DE3247512C1 (en) * 1982-12-20 1987-11-12 Mannesmann AG, 4000 Düsseldorf Process for coating metallic moldings with polyethylene
JPS602354A (en) * 1983-06-20 1985-01-08 日本鋼管株式会社 Plastic coated steel pipe
JPS60149786A (en) * 1984-01-17 1985-08-07 Kawasaki Steel Corp Surface treatment of zinc alloy electroplated steel sheet having superior corrosion resistance
DE3407283A1 (en) * 1984-02-28 1985-09-12 Elektro-Brite GmbH & Co. KG, 6097 Trebur Method for the electroless application of chromium coatings and of plastic coatings onto chromatable metal surfaces and bath for carrying out the method
JPS60222275A (en) * 1984-04-20 1985-11-06 Mitsubishi Electric Corp Automatic printer
EP0198144B2 (en) 1985-01-16 1991-07-24 MANNESMANN Aktiengesellschaft Method for enveloping a steel pipe

Also Published As

Publication number Publication date
CA1284443C (en) 1991-05-28
EP0268547A1 (en) 1988-05-25
EP0268547B2 (en) 1992-08-19
US4786339A (en) 1988-11-22
EP0268547B1 (en) 1990-01-31
DE3639417C1 (en) 1987-11-26
JPS63137774A (en) 1988-06-09

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee